<template>
  <view v-if="goods_info.goods_name">
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <view class="goods-info-box">
      <view class="price">￥{{goods_info.goods_price}}</view>
      <view class="goods-info-body">
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <view class="favi">
          <uni-icons type="star" size="18"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">快递免运费</view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航组件 -->
    <view class="goods_nav">
      <!-- fill 控制右侧按钮的样式 -->
      <!-- options 左侧按钮的配置项 -->
      <!-- buttonGroup 右侧按钮的配置项 -->
      <!-- click 左侧按钮的点击事件处理函数 -->
      <!-- buttonClick 右侧按钮的点击事件处理函数 -->
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
    </view>
    
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from "vuex"
  export default {
    computed:{
      ...mapState('m_cart', []),
      ...mapGetters('m_cart',['total'])
    },
    data() {
      return {
        goods_info:{},
             // 左侧按钮组的配置对象
             options: [{
               icon: 'shop',
               text: '店铺'
             }, {
               icon: 'cart',
               text: '购物车',
               info: 0
             }],
             // 右侧按钮组的配置对象
             buttonGroup: [{
                 text: '加入购物车',
                 backgroundColor: '#ff0000',
                 color: '#fff'
               },
               {
                 text: '立即购买',
                 backgroundColor: '#ffa200',
                 color: '#fff'
               }
             ]
      }
    },
    onLoad(options) {
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
      
    },
    watch:{
      total:{
        immediate:true,
        handler(newValue){
        const findResult = this.options.find(x=>x.text == '购物车')
        if(findResult){
          findResult.info = newValue
        }
      }
      }
    },
    methods: {
      ...mapMutations('m_cart',['addTabCart']),
      async getGoodsDetail(goods_id){
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
          if (res.meta.status !== 200) return uni.$showMsg()
            // 为 data 中的数据赋值
            res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g, 'jpg')
            this.goods_info = res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      // 右侧图标的点击事件
      onClick(e){
        console.log(e);
        if(e.content.text == '购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e) {
        if(e.content.text == '加入购物车'){
          // 造成商品的信息
          // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
          const goods = {
            goods_id: this.goods_info.goods_id,
            goods_name:this.goods_info.goods_name,
            goods_price:this.goods_info.goods_price,
            goods_count:1,
            goods_small_logo:this.goods_info.goods_small_logo,
            goods_state:true
          }
          this.addTabCart(goods)
        }
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
// 商品信息区域的样式
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    // 收藏区域
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }

  // 运费
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}
.goods_nav {
  position: sticky;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
